X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Flttng-kernel.h;h=8d87539a47ac25b05a8e86d239422a1af8a81dc2;hp=e8bc626262a674fc76c5f18332a257bb1b4a76ab;hb=287a512f2b868c16132b894a8143a5faf0379ca8;hpb=10a8a2237343699e3923d87e24dbf2d7fe225377 diff --git a/src/common/lttng-kernel.h b/src/common/lttng-kernel.h index e8bc62626..8d87539a4 100644 --- a/src/common/lttng-kernel.h +++ b/src/common/lttng-kernel.h @@ -3,27 +3,27 @@ * Mathieu Desnoyers * David Goulet * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; only version 2 - * of the License. + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2 only, + * as published by the Free Software Foundation. * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef _LTTNG_KERNEL_H #define _LTTNG_KERNEL_H #include +#include -#define LTTNG_SYM_NAME_LEN 256 +#define LTTNG_KERNEL_SYM_NAME_LEN 256 /* * LTTng DebugFS ABI structures. @@ -43,8 +43,8 @@ enum lttng_kernel_instrumentation { enum lttng_kernel_context_type { LTTNG_KERNEL_CONTEXT_PID = 0, - LTTNG_KERNEL_CONTEXT_PERF_COUNTER = 1, - LTTNG_KERNEL_CONTEXT_COMM = 2, + LTTNG_KERNEL_CONTEXT_PERF_CPU_COUNTER = 1, + LTTNG_KERNEL_CONTEXT_PROCNAME = 2, LTTNG_KERNEL_CONTEXT_PRIO = 3, LTTNG_KERNEL_CONTEXT_NICE = 4, LTTNG_KERNEL_CONTEXT_VPID = 5, @@ -52,29 +52,40 @@ enum lttng_kernel_context_type { LTTNG_KERNEL_CONTEXT_VTID = 7, LTTNG_KERNEL_CONTEXT_PPID = 8, LTTNG_KERNEL_CONTEXT_VPPID = 9, + LTTNG_KERNEL_CONTEXT_HOSTNAME = 10, + LTTNG_KERNEL_CONTEXT_CPU_ID = 11, + LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE = 12, + LTTNG_KERNEL_CONTEXT_PREEMPTIBLE = 13, + LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE = 14, + LTTNG_KERNEL_CONTEXT_MIGRATABLE = 15, }; /* Perf counter attributes */ struct lttng_kernel_perf_counter_ctx { uint32_t type; uint64_t config; - char name[LTTNG_SYM_NAME_LEN]; -}; + char name[LTTNG_KERNEL_SYM_NAME_LEN]; +} LTTNG_PACKED; /* Event/Channel context */ +#define LTTNG_KERNEL_CONTEXT_PADDING1 16 +#define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 struct lttng_kernel_context { enum lttng_kernel_context_type ctx; + char padding[LTTNG_KERNEL_CONTEXT_PADDING1]; + union { struct lttng_kernel_perf_counter_ctx perf_counter; + char padding[LTTNG_KERNEL_CONTEXT_PADDING2]; } u; -}; +} LTTNG_PACKED; struct lttng_kernel_kretprobe { uint64_t addr; uint64_t offset; - char symbol_name[LTTNG_SYM_NAME_LEN]; -}; + char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; +} LTTNG_PACKED; /* * Either addr is used, or symbol_name and offset. @@ -83,37 +94,67 @@ struct lttng_kernel_kprobe { uint64_t addr; uint64_t offset; - char symbol_name[LTTNG_SYM_NAME_LEN]; -}; + char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; +} LTTNG_PACKED; /* Function tracer */ struct lttng_kernel_function { - char symbol_name[LTTNG_SYM_NAME_LEN]; -}; + char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; +} LTTNG_PACKED; +#define LTTNG_KERNEL_EVENT_PADDING1 16 +#define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 struct lttng_kernel_event { - char name[LTTNG_SYM_NAME_LEN]; + char name[LTTNG_KERNEL_SYM_NAME_LEN]; enum lttng_kernel_instrumentation instrumentation; + char padding[LTTNG_KERNEL_EVENT_PADDING1]; + /* Per instrumentation type configuration */ union { struct lttng_kernel_kretprobe kretprobe; struct lttng_kernel_kprobe kprobe; struct lttng_kernel_function ftrace; + char padding[LTTNG_KERNEL_EVENT_PADDING2]; } u; -}; +} LTTNG_PACKED; struct lttng_kernel_tracer_version { - uint32_t version; + uint32_t major; + uint32_t minor; uint32_t patchlevel; - uint32_t sublevel; -}; +} LTTNG_PACKED; -enum lttng_kernel_calibrate_type { - LTTNG_KERNEL_CALIBRATE_KRETPROBE, -}; +struct lttng_kernel_tracer_abi_version { + uint32_t major; + uint32_t minor; +} LTTNG_PACKED; -struct lttng_kernel_calibrate { - enum lttng_kernel_calibrate_type type; /* type (input) */ -}; +struct lttng_kernel_syscall_mask { + uint32_t len; /* in bits */ + char mask[]; +} LTTNG_PACKED; + +/* + * kernel channel + */ +#define LTTNG_KERNEL_CHANNEL_PADDING1 LTTNG_SYMBOL_NAME_LEN + 32 +struct lttng_kernel_channel { + uint64_t subbuf_size; /* bytes */ + uint64_t num_subbuf; /* power of 2 */ + unsigned int switch_timer_interval; /* usec */ + unsigned int read_timer_interval; /* usec */ + enum lttng_event_output output; /* splice, mmap */ + + int overwrite; /* 1: overwrite, 0: discard */ + char padding[LTTNG_KERNEL_CHANNEL_PADDING1]; +} LTTNG_PACKED; + +#define KERNEL_FILTER_BYTECODE_MAX_LEN 65536 +struct lttng_kernel_filter_bytecode { + uint32_t len; + uint32_t reloc_offset; + uint64_t seqnum; + char data[0]; +} LTTNG_PACKED; #endif /* _LTTNG_KERNEL_H */